有机硅材料
有機硅材料
유궤규재료
SILICONE MATERIAL
2013年
2期
92-96
,共5页
甲基苯基硅油%烯丙基缩水甘油醚%硅氢加成%醇解%甲醇%端氢基%羟烷基
甲基苯基硅油%烯丙基縮水甘油醚%硅氫加成%醇解%甲醇%耑氫基%羥烷基
갑기분기규유%희병기축수감유미%규경가성%순해%갑순%단경기%간완기
polymethylphenylsiloxane%allyl glycidyl ether%hydrosilylation%methoxylation%methanol%hydrogen%hydroxyalkyl
以端氢基甲基苯基硅油和烯丙基缩水甘油醚为原料，在铂催化下通过硅氢加成反应制得端环氧基甲基苯基硅油；再在浓硫酸催化下，经甲醇醇解反应，得到端羟烷基甲基苯基硅油。研究了反应温度、反应时间、催化剂用量等对活性氢转化率的影响。结果表明，硅氢加成反应的最佳条件为：反应温度90℃，时间5 h，催化剂用量为反应物质量的0.015％，烯丙基缩水甘油醚中的C C与端氢基甲基苯基硅油中的Si-H的量之比为1.1∶1，此时，活性氢的转化率达94.87％；醇解反应的最佳反应时间为10 h。红外光谱与核磁共振光谱证实产物为端羟烷基甲基苯基硅油。
以耑氫基甲基苯基硅油和烯丙基縮水甘油醚為原料，在鉑催化下通過硅氫加成反應製得耑環氧基甲基苯基硅油；再在濃硫痠催化下，經甲醇醇解反應，得到耑羥烷基甲基苯基硅油。研究瞭反應溫度、反應時間、催化劑用量等對活性氫轉化率的影響。結果錶明，硅氫加成反應的最佳條件為：反應溫度90℃，時間5 h，催化劑用量為反應物質量的0.015％，烯丙基縮水甘油醚中的C C與耑氫基甲基苯基硅油中的Si-H的量之比為1.1∶1，此時，活性氫的轉化率達94.87％；醇解反應的最佳反應時間為10 h。紅外光譜與覈磁共振光譜證實產物為耑羥烷基甲基苯基硅油。
이단경기갑기분기규유화희병기축수감유미위원료，재박최화하통과규경가성반응제득단배양기갑기분기규유；재재농류산최화하，경갑순순해반응，득도단간완기갑기분기규유。연구료반응온도、반응시간、최화제용량등대활성경전화솔적영향。결과표명，규경가성반응적최가조건위：반응온도90℃，시간5 h，최화제용량위반응물질량적0.015％，희병기축수감유미중적C C여단경기갑기분기규유중적Si-H적량지비위1.1∶1，차시，활성경적전화솔체94.87％；순해반응적최가반응시간위10 h。홍외광보여핵자공진광보증실산물위단간완기갑기분기규유。
Epoxy terminated methyl phenyl silicone fluid was prepared by the hydrosilylation of hydrogen terminated polymethylphenylsioxane and allyl glycidyl ether (AGE) with platinum as catalyst.Then the epoxy terminated methyl phenyl silicone fluid was reacted with methanol through methoxylation with concentrated sul -furic acid as the catalyst to produce hydroxyalkyl terminated polymethylphenylsiloxane .The optimal synthesis conditions were that the hydrosilylation was carried out at 90℃for 5 hours with the catalyst at a mass fraction of 0.015%of the reaction substance, and the molar ration of AGE to hydrogen terminated polymethylphenyl-sioxane of 1.1∶1.0, achieving the conversion yield of active hydrogen was 94.87%and the optimal reaction time of the methoxylation was 10 hours.The structural determination by FTIR and 1 H NMR spectra showed that the hydroxyalkyl terminated polymethylphenylsiloxane was successfully prepared .
